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Naily [24]
3 years ago
8

Evaluate the expression. 6 to the third power + 5( 8 + 15)

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
6 0

Answer:

5083

Step-by-step explanation:

6^3 + 5(8 + 15)

Simplify the bracket first

6 x 6 x 6 + 5 (23)

216 + 5 (23)

221 (23)

221 x 23 = 5083

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Solve for x: 3x+6>-15 x=?
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Answer:

x>-7

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
A rectangular garden must have a perimeter of 150 feet and an area of at least 1200 square feet. Describe the possible lengths o
kipiarov [429]

Answer: 51.86 and 23.14

Step-by-step explanation:

The rectangular garden must have a perimeter of 150 feet

Perimeter of rectangular garden =

2l + 2w=150 -----------1

The rectangular garden must have a perimeter of 150 feet and an area of at least 1200 square feet.

Area of rectangular garden =

l×w= 1200 feet^2 -----------2

From equation 2, l=1200/w

Put l=1200/w in equation 1

2× 1200/w + 2w = 150

(2400/w) +2w = 150

(2400+2w^2)/w =150

2400+2w^2= 150w

2w^2- 150w+2400=0

Using the general formula

w = [-b+-√(b^2-4ac)]/2a

a = 2, b =-150, c=2400

w =[--150+/-√(-150^2-4×2×2400)]/2×2

=[150+/-√(22500-19200)]/4

=[150+/-√3300)]/4

=(150+57.45)/4 or (150-57.45)/4

w= 207.45/4 or 92.55/4

w= 51.86 or w= 23.14

l = 1200/51.86 or l= 1200/23.14

l = 23.14. or l= 51.86

For an area of at least 1200ft^2

The dimensions are 51.86 and 23.14

4 0
3 years ago
3) A school's enrollment in 2019 was 692 students. In 2020 they enrolled 852 students. What was the % increase in students from
elena55 [62]

Answer:

D. 23.1%

Step-by-step explanation:

852-692=160    160/692=0.231213873  rounds to 0.231  move decimal over two places to the right to make it percent which is 23.1%

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3 years ago
Miss Gonzales opened an account with a deposit of $2,000,
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Answer:

22.5

Step-by-step explanation:

8 0
3 years ago
(n+8)+(n−12)<br> Please help
Sonbull [250]

Answer:

=n+8+n+−12

=(n+n)+(8+−12)

=2n+−4

Answer:

=2n−4

= 2(n-2)

6 0
2 years ago
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